Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
150022goodexcellent51excellent
140018excellentexcellent51excellent
130018excellentexcellent41excellent
120019excellentexcellent51excellent
110033goodexcellent91excellent
100064lightly pollutedexcellent121excellent
090077lightly pollutedexcellent131excellent
080086lightly pollutedexcellent131excellent
070087lightly pollutedexcellent141excellent
060075lightly pollutedexcellent131excellent
050068lightly pollutedexcellent131excellent
040070lightly pollutedexcellent131excellent
030069lightly pollutedexcellent111excellent
020042goodexcellent81excellent
010033goodexcellent51excellent
000029goodexcellent51excellent
230037goodexcellent61excellent
220046goodexcellent81excellent
210067lightly pollutedexcellent111excellent
200064lightly pollutedexcellent121excellent
190054goodexcellent111excellent
180048goodexcellent91excellent
170045goodexcellent91excellent
160053goodexcellent101excellent